Setts



Aug. 1s, 1931.

W. J. YOUNG DOWL DRIVING MACHINE Filed March l0; 1951 3 Sheets-Sheet l Aug. 1s, 1931. w. J. YOUNG 1,819,584

DOWEL DRIVING MACHINE Filed March l0, 19514 3 Sheets-Sheet 2 Aug. 1s, 1931.

w. J. YOUNG 1,819,584

nowm. DRIVING MACHINE:

Filed March 1o, 1931 Sheets-Sheet 5 Patented Aug. is, 193i Unirse :STATES WILLIAM J". YOUNG, OF LYNN,

rAfraNr orifice ivifis'saciiosnrrs. Assioivo'ia To W. J. YOUNG -iviA- i CHINE-RY COMPANY, F LYNN, MASSACIIUSE'JI''1AS, AGORPORATION OF MASSACHU- SETTS noWiiL DRIVING MACHINE Application' ined March io, 19'31. 'seri No. '521,422.

` lo character and preventing them from splitting in the narrow parts. However, the "esseiitial invention is applicable to machines otherwise designed for other purposes, where` fore the protection herein claimed is not i limited to the specific use indicated, at least in its broader aspects.

The new step of the invention resides mainly in means which I have devised for automatically transferring dowels from a '2o source of supply into driving position,l and for holding `and kguiding them while 'being driven, together with the combination of such means with a driver and the operating' means therefor. A. minor phase of the invention is `concerned with an improved-work rest 'or support, including provisionsfor adjusting it universally.

The machine above referred to which applies the invention to the purpose of setting eo metal dowels or reinforcing pins Iin wood heels is shown in the accompanyingdrawin'gs, wherein i Fig. 1 is a side elevation of the machine; Fig. 2 is a front `elevation of the machine; Fig. 3 is a vertical section of the upper part of the machine taken on line of Fig. 2 and shown on a larger scale;

Figs. 4 and 5 are cross sections taken on lines 1 -4 and 5--5, respectively, of Fig. 3;

Fig. 6 is a fragmentary elevation partly in section of the dowel transfer device and guide in cooperative relation with the ra'ceway and driver;

Fig. 7 is a similar. view showing the transfer device in a different position-and showing also the work support;

Figs. 8 and 9 are detail cross'sections taken on lines 8 8 and 9 9, respectively of Fig. 6; and

Fig. 10 is a perspective view of -a wood'heel containing metal reinforcing dowel 'and illustrating 'the Acharacterof work performed by this machine.

Like reference characters designate the same parts wherever they occur :in all 4the figures.

Thejdowel's or pins, 'to be driven are 'contained in a hopper 11, are picked up from the bottoni of thehopper by a lifter 12 which delivers them to an inclined r'ace'way 13, and are taken from the lower end of the rac'eway by a't-ransfererlt vvliich places them in alinement with a driver 15 and cooperates with a stationary guide 16 in holding them while being advanced b y the driver into a hole 17 previously drilled in a wood heel 18. These parts `and the work rest are supported by a 'pedestal or base 19 and an upper frame 2O mounted on the top of the base. The hopper '11 is secured to the upper frame at one side thereof by a bracket arm21 which is bolted to the frame. The bottom of this hopper inclines downward from the opposite sides towa'rdthe middle plane, and has a vertical downward extension forming a g'iiideway for the lifter 12,y which is a plate slightly thicker than the diameter of the dowels, having an inclined lupper edge 22 in which is a groove or gutter adapted to receive a 'dowel lying on its side, `or" a number of such dow'els in alineine-iit.` The raceway extends from within the hopper through the side thereofnext to the frame 20, on a: downward slant, to aterminati'o'n adjacent to the transferer 14.

Tlielifte'r is ieciprocated vertically betweenv the lowered position wherein its edgeV 22 is at or below the mid line of the hopper bottom, to an elevated position wherein its upper edge is approximately alined with the racew'ay, or raised above such an alinenient. It is so reciprocated constantly by a motor 23,. gearing 211, 25, pulley 26, belt 27 pulley A28, gearing 29, 30, a pin and slot connection 31, 32, with a lever 33 pivoted to bracket 34 on the base and with` the lifter. When the upper edge of the lifter rises to alinenient with the raceway, the dowels which are properly positioned in the groove of the lifter slide by gravity into the groove of the raceway, and thence 'downa link 35 coupling said lever ward until arrested by the transferer. A toothed or notched disk 36 is mounted directly above the raceway and partly in the opening through which the raceway passes through the side of the hopper, for the purpose .of removing and throwing back into the hopper any dowels which may happen to drop crosswise on the raceway. Such disk is secured to a shaft 37, supported in bearings on the hopper, to which shaft is secured a pulley 38 driven by a belt 39 from a pulley 40 secured to pulley 28. y p

The transferer or transfer device 14 is also a gate and escapement device for causing the dowels to be fed one by one from the raceway, and one member of a two part guide or channel in which the dowels are held preparatory to being engaged and' advanced by the driver. It is made. as an arm or block connected by a pivot pin 4l to a stationary block 42 which is mounted in a holder 43 secured to one of the side members of the upper frame 20, as shown most plainly by Fig. 4. A recess is formed in the upper and forward part of the block 42 wide and deep enough to accommodate the transferer 14, in which the latter is fitted. Swinging movement of the transferer brings its side 44 up to and away from the face 45 of the block, and in these sides or faces 44 and 45 are formed grooves, the coniplementalhalves of a passage fitted to receive the dowels and the driver.v The groove in the face 45 is the compleinental guide 16 mentioned previously. lA continuation 46 of the passage runs through the solid part of the block below Vthe lower end of the transferer.

The end face 47 of the transferer is curved on circular arc about the pivot center 4l and is extended laterally far enough to cross the end of the raceway at all times except when'the transferer is swung fully aside, as shown in Fig. 7. This part of the transferer serves as a gate to prevent delivery of dowels f' from the raceway except when the transferer is thus swung aside'. A spring 48, of well known character, tends to move the transfer'- er thus to one side, and does so whenever permitted by the later described operating 'arm 49, holding it then against an adjustable stop 50 which is so set as to arrest the transferer with the groove in its face 44 in register with the raceway groove.

The driver 15 is advanced for its driving function, in this machine, by a treadle lever 5l through a link 52, slide bar 53, link 54, lever 55.A and link 56 which connects said lever with the driver carrying bar 57, which fits slidinol in a .Ouidewa 58 riOfidl conh y c3 2':

nected with the upper part of the frame. The driver itself is a ron secured to the driver bar and fitted to slide in a guide sleeve 59 set into the'lower end of guide 58. Lever 55 is pivoted at 60 to a bracket 6l on the upper end of the machine frame. The slide b ar 53 'not a ylimitation of the invention, and that power means, controllable by the operator, may be used as well understood in the art of machines for driving dowels, etc.

The transferer-operating arm or lever 49 is pivoted by means of a shaft 66 to the frame and protrudes through a slot 67 in the holder 43, its forward end being beside the block 42 and being sustained against the reaction of the transferer by a reaction guide bar G3 secured to holder 42 at the opposite side of slot 67. Dogs 69 and 70 are mounted adjust-A ab'ly onthebar 53 above and below arm 49 Yandare-so adjusted that on the up stroke of the bar dog 70 will raise the arm to a positionv beside the transferer, as shown by Figs. 3 and 6, and on the down stroke, dog 69 will shift the arm to a position below the pivot axis of the transferer after the driver has driven the dowel well into the work, and when the guiding function of the transferer on this dowel is no longer needed, as illustrated by Fig. 7.

The work support is a table 7l connected to a holder 72 by a pivot pin 73 passing through overlapping lugs 74, 75, on the table and holder. The latter in turn is connected by a pivot 76, transverse to the pivot 73, to the upper end of a slide 77, which is guided inA ways 7 8 in the frame, and is supported Vand adjusted by a screw 79 threaded through a. web 80 of the frame. On the slide is a bracket 8l containing an adjustable screw 82 by which lthe unbalanced weight of the work table and its holder, in front of pivot 76, is supported. A heel is adapted to be supported on the table 7l and positioned by an adjustable breast gage 83 and side gage 84 to receive a dowel in a previously prepared hole. By virtue of the pivots 73 and 76 and adjusting screws 82 and 79, the table can be placed for a heel of any height and for driving a dowel at any inclination into the heel. The front to rear angular adjustment made by vthe screw 82 accommodates heels of different styles to the driving line, while the tip ping or lateral adjustment above pivot 73 enables the dowel to be driven clear of the point in the base end of the heel where a. screw or nail is frequently inserted to secure it to a shoe. This lateral angular adjustment is secured by means of a clamp screw 35 passing through an arcuate yslot 86 in the forward lug 74? and threaded into thecontiguouslug 75.y ofthe holder; When the heel is firmly pressed by the operators hands up to the gages S8,v S4-and` against the surface of the table 71, which may be roughened, it is held firm-lyenough to sustain the blow of the driver without slipping, even though the suriace of the tab-le may be inclined.

In the operation ot the macliine, whenever the driver is raised, as showninFig.- 7, the transferer 14 is in dowel guiding position and a dowel a is in the passage, being sup,- ported by a retractable spring pressed stop 87. At this time the dowel b at the end of the raceway bears on the curved'face 47 of the transferer which holds it back.` Under the pressure of the driver,the dowel in the passage.` pushes the stop 87 outI ot the way and is thrust into the heel ;A and when it has been driven nearly all the; Way in, the transferer is allowed to swing aside to the position limited by a stopfll. 'The following dowel b is then released and allowed to slide down into the channel in. the face 44 of the transferer, until arrested by the side ot the driver. Thereafter, when the driver rises and has nearly passed out of the guideway, the transferer is restored to the upright position, carrying the dowel b into line with the driver and at the same time blocking by meanso-f its 'face 47 the following dovvels in the racewayv. A guard 88 is faste-ned to the raceway so as to overlie the grooved upper edge thereof and hold the dowels in line in the groove. This guard terminates far enough short of the raceway end to permit removal by the transferer of dovvels which occupy the position of the dowel b in Fig. 7.

In designing the machine I have adopted principles old and well known inthe art of automatically supplying and driving fasteners of one kind or another into manufactured articles. Thus, for example, the magazine or hopper and lifter for the dowels are; similar to devices used tor the sam-e purpose with nail feeding machines; and the mode oi supporting, guiding and operating the driver are old. However, it is novel and original with this invention, as I believe to provid-e in combination with anv inclined racevvay down which dofwels are adapted to travel lengthwise, a transferer of the nature of the transfere-r 14, which receives dowels one at a. time `from the inclined raceway and shifts them into line with the driver, and holds back the following do-wels until return to its receiving position. The principles of this invention, as

previously intimated,y are appli-cable to driving dowels and other faster-rings of that nature into manufactures of various charac'- ters whether made of a single piece, like a wood heel, or: of two or more pie-ces joined tofgether. Such modifications of dimensions and proportions as may be needed to tit the machine for articles. of different character are consideredtoy bewithin the province lof the machine designer.

, In this specification andl inthe fol-lowing claims the word ffdowel, is used in a sense suiiiciently genericr to include all fastening members which are capable oi being supplied, transferred and driven by linstrumentalities vemloodyirng the principles oi those herein deytor receiving the dowels. to bey driven, of ai raceway leading on an inclination toward such guideway for conducting dowels end.- wise thereto, and a lmovable transferer having a side which is adapted to be placed in alinement ,with said, raceway for receiving dowelstherefrom and to be shifted to another position where-in it forms a part of the guidewa 'f f l 2. In a dowel driving machine, the combination with a reciprocatable, driver and guidingnieans in alineme-nt with such diri-ver forreceivingV the dowels to be driven, of a raceway leading 'on an inclination toward such guidesway tor conducting dowels endwise thereto, and a movable transferer having a side whichis adapted to be placed in aline-ment with said raceway for receiving dowels therefrom and to be shifted to another position wherein it formsl a part of the guideway, the end oi said transferer being arranged as a gate across the delivery end of the; race-way when the transferer is in the last name-d position.,

3. Ina dowel feeding andv driving machine, a drive-rreciprocatable in a substantially vertical line a block having a guide passage: for said4 driver and being cut away in itsI upper part at onef side of said passage, a transferer pivoted. to the bloclr having a grooved side arranged to be placed by swinging movement ot thel transferer iirtoa position where its groove complementsthat of the side of the block. in, completing said passage, and into an inclined position, and a raceway having a guide channel adapted to conduct do-wels endw-ise, leading on an inclination in alineinent with the grooved. side of the trans- Jf'erer when the; latter is in its second named position. g f

4.A a dowel. feeding and driving machine, a driver' reciproeatable in a substantially vertical line, a bl'oclr having a guide passage forY said. driver and' being cut away in its upper part at one side oi? said passage, a transferer pivoted to the` block having a grooved side arranged to be placed by swinging movement of the transferer-into a positionwhere its groove complements that of the` side of the block in completing said passage,V and into inclined position, and; a raceway having a guide channel adapted to conduct dowels endwise, leading on an inclinationv in alinement with the grooved side of the transerer when the latter is in its second named position, and terminating adjacent to theV end of the transferer, the transferer having an end face which is curved concentrically with its pivot and extends through an arc at least as wide as the angle between the two named positions of the transferer, whereby it obstructs progress of the dowels except when the transferer is in its second named position.

5. In a dowel driving machine, the combination with a reciprocatable driver, of means for delivering dowels in a path inclined to that of the driver, an angularly movable transferer for receiving dowels from the delivery `means and swinging them into alinement with the driver, a reciprocating bar associated with the driver to travel simultaneously therewith, a swinging arm adapted to engage said transferer, and means on 'said barto engage and move said arm so as to swing the transferer into position for presenting a dowel to the driver when the driver is retracted, and for shifting the arm so as to permit displacement of the transferer 'into dowel receiving position when the driver is advanced. y

6. In a dowel driving machine, a reciprocatable driver, a block cut away at one side in its upper part and having a wall in alinernent with the driver grooved to receive one side of the driver, a transferer pivoted to said block having a face movable up to and away yfrom the said wall and being grooved to cooperate with the first named groove in providing a passage for dowels and the driver, means normally tending to swing the transferer aside from the said wall, a raceway having a dowel conducting groove alined with the groove in th-e transferer when the latter is so swung aside, an actuator for the transferer movable against the same to shift it up to the said grooved wall of the block, and means for so moving the actuator when the driver is withdrawn, andV releasing the e actuator from the transferer when the driver is near the end of its driving stroke.

7. In a dowel driving machine, a supporting structure, an endwise reciprocatable driver, a block on said supporting structure having a passage through which theV driver is movable, a transferer pivoted to the body of the block so as to move between a position in which one of its sides forms a boundary of the upper part of the passage, and a position in which such side is inclined, a raceway having vmeans for conducting dowels endwise in alinement with the inclined position of said side, an endwise movable bar connected Jfor movement in unison with the driver, an arm extending generally parallel to the pivot axis of the transferer and haviing a portion near the outer side of the latter movable between stations -respectively above and below the said pivotv axis, and

means whereby'said bar raises the arm at downwardly movable driver, a block mounted on said structure having a passage in line with the driver through which the driver is adapted to travel, said block being cut away in its upper part at one side of said passage,

a transferer pivoted to the block having a face which serves when in one position as'one boundary of the upper part of the passage and when in another position is inclined to the passage, a raceway having a guidechannel for dowels lying on their sides extending in register with'the inclined position of the said side of the transferer, and otherwise so located that the end of the transferer forms a gate to its channel when in any other than said inclined position, an arm movable in an upward and downward path beside the outer side of the transferer engageable therewith `when raised and passing below the pivot thereof(l when lowered, yielding means tendlng to place the transferer in its lnclinedposition, and means associated with the driver 4for operation simultaneously therewith for Vvbar coupled with said driver-for vreciprocating it, a dowel guiding bloclrhaving a passage ada-pted toreceive dowelsand to be traversed by the driver, a transferer pivoted to the block at one side of the passage and having in its side face a groove which forms one boundary of a portion of the passage, said transferer being movable about its pivot to a position inclined to said passage, al spring acting on the transferer with tendency to shiftit Yinto said inclinedposition, a stop located to establish said position, a raceway having a channel to conduct dowels endwise, located in alinement with the groove of said transferer when the latter is`in the inclined position, and terminating adjacent to the end of the transferer, which latter has an end face arranged to serve as a stop preventing emission of `dowels from the raceway when the transferer is in the position for enclosing the dowel guiding passage in said block, an arm pivoted to the frame and passing across said driver operating rod and having a portionlying beside the transferer,

and dogs adjustably mounted on said bar at opposite sides of said arm adapted to shift the arm from one position to another when the driver is near the opposite limits of its reciprocating movements, the transferer having a surface adjacent to said arm and arranged to be engaged by the latter when in one of its positions so as to hold the transferer in the passage closing position, the other position of the arm being located clear of the transferer so that the latter is free to assume its before named inclined position.

10. In a dowel driving machine of the character described, a Work support comprising a table, a holder to Which said table is pivoted with provision for lateral angular adjustment, a slide to Which the holder is pivoted on an axis transverse to the rst named pivot, means for adjusting the holder angularly about the second named pivot, and means for adjusting the' slide linearly in a direction transverse to both pivots.

11. In a dovvel driving machine, the combination with guiding means having a passage eXtending in an up and down direction for reception of doivels to be driven, a driver arranged to travel through said passage for driving the doWel therein, stop means arranged to withhold the doWel from accidental displacement from said passage, adapted to yield under the thrust of the doWel When impelled by the driver, a'racevvay leading on an inclination toward said guide Way, and a movable transferer having a side Which in 1 one position forms a boundary of said passage and in another position is substantially a continuation of said raceway.

In testimony whereof I have affixed my signature.

WILLIAM J. YOUNG. 

